Stock assessment for British Columbia herring in 1998 and forecasts of the potential catch in 1999 / J. Schweigert, C. Fort, and R. Tanasichuk.: Fs70-1/1999-21E-PDF
This report presents stock assessments from two analytical models which have been developed explicitly for British Columbia herring: (1) a modification of the escapement model described by Schweigert and Stocker (1988); and (2) a modification of the age-structured model described by Fournier and Archibald (1982). Both models reconstruct stock abundance for the period 1951-1998 and forecast pre-spawning abundance for the 1999 season. Forecasts of upcoming run size are based on the combination of estimates of surviving repeat spawners and newly recruited spawners which are presented as poor, average, and good, based on historical recruitment levels.
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| Department/Agency | Canada. Department of Fisheries and Oceans. Canada. Canadian Stock Assessment Secretariat. |
|---|---|
| Title | Stock assessment for British Columbia herring in 1998 and forecasts of the potential catch in 1999 / J. Schweigert, C. Fort, and R. Tanasichuk. |
| Series title | Canadian Stock Assessment Secretariat research document, 1480-4883 ; 99/21 |
| Publication type | Series - View Master Record |
| Language | [English] |
| Format | Electronic |
| Electronic document | |
| Note(s) | Includes bibliographical references (p. 54-56). |
| Publishing information | Ottawa : Fisheries and Oceans Canada, 1999. |
| Author / Contributor | Schweigert, J. F. Fort, C. Tanasichuk, Ronald W. |
| Description | 69 p. : fig., graphs, maps, tables. |
| Catalogue number |
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| Subject terms | Fisheries resources Salt water fish Fishing area Fisheries management |
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